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New Gel Regrows Dental Enamel–Which Humans Cannot Do–and Could Revolutionize Tooth Care
The gel can be rapidly applied to teeth in the same way dentists currently apply standard fluoride treatments. However, this new protein-based gel is fluoride-free and works by mimicking key features of the natural proteins that guide the growth of dental enamel in infancy.
The findings have been published today in Nature Communications.
Scientists from the University of Nottingham's School of Pharmacy, in collaboration with an international team of researchers, sought a method of treatment for addressing this major cause of tooth decay which is estimated to be associated with a full 50% of all tooth problems in the world.
These 50% of problems don't merely lead to the obvious infections like dental caries, cavities, and tooth loss, but are also heavily associated with conditions such as diabetes and cardiovascular disease. Arterial plaques—the substances that can impede blood flow and cause stroke and heart attacks, have been found to contain bacterial biofilms in the periodontal environment—think about that the next time to want skip flossing.
When applied, the scientist's experimental gel creates a thin and robust layer that impregnates teeth, filling holes and cracks in them. It then functions as a scaffold that takes calcium and phosphate ions from saliva and promotes the controlled growth of new mineral in a process called epitaxial mineralization.
This enables the new mineral to be organized and integrated to the underlying natural tissue while recovering both the structure and properties of natural healthy enamel.
It can also be applied on top of exposed dentine, growing an enamel-like layer on top of dentine, which has many benefits including treating hypersensitivity or enhancing the bonding of dental restorations.
"We have tested the mechanical properties of these regenerated tissues under conditions simulating 'real-life situations' such as tooth brushing, chewing, and exposure to acidic foods, and found that the regenerated enamel behaves just like healthy enamel,"
Dr. Abshar Hasan, a postdoctoral fellow and leading author of the study, said in a Nottingham U. press release.